I studied political philosophy at university. This meant I spent a lot of my time doing exegesis of John Rawls, a prominent philosopher. There was a particularly big exegesis industry surrounding Political Liberalism and related work. People just could not agree on what his arguments for political liberalism were.
This is a failing on Rawls’ part. Rule number one when making an argument is clarity. Smart well-informed people should not be left uncertain about what you are saying if they get to the end of your long book.